The correct observation in the following reactions is :

Question:

The correct observation in the following reactions is :

  1. Formation of blue colour

  2. Gives no colour

  3. Formation of red colour

  4. Formation of violet colour


Correct Option: , 3

Solution:

Seliwanoff reagent $\rightarrow$ [Resorcinol + Conc. HCl]

It is used to distinguish aldoses and ketoses. Ketoses show red colour whereas aldoses show light pink colour with Seliwanoff Reagent.

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